______ all the seats full, he had no choice but to stand up.

___ the employees’ working efficiency, the supervisor will allow them to have a coffee break

Mark Twain ______ school and began to work at the ageof twelve.

Can you yourlittle brother I’m busy now.—All right,mun.I’ll do it right now.

I ___________________ to stay out inthe cold ___________ spend the night there.